512 Marine St Boulder, CO 80302
University Hill NeighborhoodEstimated payment $27,316/month
Total Views
6,325
4
Beds
4.5
Baths
4,904
Sq Ft
$969
Price per Sq Ft
Highlights
- Hot Property
- Open Floorplan
- Fireplace in Primary Bedroom
- Flatirons Elementary School Rated A
- Wolf Appliances
- Wooded Lot
About This Home
Located on one of Boulder's most iconic, tree-lined streets, this architecturally rich residence effortlessly blends timeless charm with elevated modern design. Thoughtfully curated and beautifully finished, the main level features sustainably refinished hardwood floors, soaring ceilings, and a striking gourmet kitchen outfitted with a new Sub-Zero refrigerator, Wolf range, and a marble-topped island ideal for gatherings. Refined living and dining spaces exude warmth and character with custom built-ins, designer lighting, and multiple fireplaces.Upstairs, the vaulted primary suite offers a true retreat, complete with its own fireplace, a private balcony, and sweeping Flatiron views. Two additional bedrooms are filled with light and comfort, each enjoying access to a beautifully appointed bath-one en suite, the other just a few steps away. A whimsical "secret" bonus room adds charm and flexibility for imaginative play or clever storage.The lower level expands the living experience with impressive ceiling height, a bright media room, custom shelving, glass-enclosed home office, and a private guest suite with a spa-like bath.Outdoors, the magic continues. The professionally landscaped backyard is a lush and tranquil sanctuary with a newly paved patio, serene waterfall feature, plumbed-in BBQ, and multiple entertaining spaces-plus a storybook two-story playhouse with sandbox and a full sprinkler system for year-round vibrancy. A detached cottage with vaulted ceilings, a kitchenette, and powder room offers flexible bonus space-perfect for a gym, office, studio, guest quarters or teen hangout-while the detached garage boasts epoxy floors and built-in storage. Just moments from top cafes, award-winning restaurants, boutique shopping, Chautauqua Park, and endless hiking trails, this is quintessential Boulder living at its finest.
Home Details
Home Type
- Single Family
Est. Annual Taxes
- $25,584
Year Built
- Built in 1903
Lot Details
- 9,947 Sq Ft Lot
- Fenced
- Level Lot
- Sprinkler System
- Wooded Lot
- Landscaped with Trees
Parking
- 2 Car Detached Garage
Home Design
- Victorian Architecture
- Brick Veneer
- Wood Frame Construction
- Composition Roof
Interior Spaces
- 4,904 Sq Ft Home
- 2-Story Property
- Open Floorplan
- Bar Fridge
- Vaulted Ceiling
- Multiple Fireplaces
- Gas Fireplace
- Window Treatments
- Wood Frame Window
- Family Room
- Living Room with Fireplace
- Dining Room
- Home Office
- Recreation Room with Fireplace
- Wood Flooring
- Property Views
Kitchen
- Eat-In Kitchen
- Double Oven
- Gas Oven or Range
- Microwave
- Wolf Appliances
- Kitchen Island
Bedrooms and Bathrooms
- 4 Bedrooms
- Fireplace in Primary Bedroom
- Walk-In Closet
- Primary Bathroom is a Full Bathroom
Laundry
- Laundry on upper level
- Dryer
- Washer
Basement
- Basement Fills Entire Space Under The House
- Sump Pump
Home Security
- Radon Detector
- Fire and Smoke Detector
Outdoor Features
- Balcony
- Patio
- Outdoor Gas Grill
Schools
- Flatirons Elementary School
- Manhattan Middle School
- Boulder High School
Utilities
- Forced Air Heating and Cooling System
- Water Purifier is Owned
- Cable TV Available
Community Details
- No Home Owners Association
- Highland Lawn Subdivision
Listing and Financial Details
- Assessor Parcel Number R0000453
Map
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Home Values in the Area
Average Home Value in this Area
Tax History
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $25,584 | $286,607 | $93,644 | $192,963 |
| 2024 | $25,584 | $286,607 | $93,644 | $192,963 |
| 2023 | $25,140 | $291,108 | $94,336 | $200,457 |
| 2022 | $22,558 | $242,917 | $71,335 | $171,582 |
| 2021 | $21,511 | $249,907 | $73,388 | $176,519 |
| 2020 | $20,115 | $231,082 | $92,450 | $138,632 |
| 2019 | $19,807 | $231,082 | $92,450 | $138,632 |
| 2018 | $17,459 | $201,369 | $80,568 | $120,801 |
| 2017 | $16,912 | $222,625 | $89,072 | $133,553 |
| 2016 | $15,900 | $183,677 | $73,471 | $110,206 |
| 2015 | $15,056 | $149,679 | $81,510 | $68,169 |
| 2014 | $12,585 | $149,679 | $81,510 | $68,169 |
Source: Public Records
Property History
| Date | Event | Price | List to Sale | Price per Sq Ft | Prior Sale |
|---|---|---|---|---|---|
| 09/25/2025 09/25/25 | For Sale | $4,750,000 | +36.5% | $969 / Sq Ft | |
| 09/17/2019 09/17/19 | Off Market | $3,480,000 | -- | -- | |
| 06/18/2019 06/18/19 | Sold | $3,480,000 | -0.4% | $747 / Sq Ft | View Prior Sale |
| 06/18/2019 06/18/19 | For Sale | $3,495,000 | +55.3% | $750 / Sq Ft | |
| 01/28/2019 01/28/19 | Off Market | $2,250,000 | -- | -- | |
| 10/29/2012 10/29/12 | Sold | $2,250,000 | -4.3% | $483 / Sq Ft | View Prior Sale |
| 09/29/2012 09/29/12 | Pending | -- | -- | -- | |
| 08/14/2012 08/14/12 | For Sale | $2,350,000 | -- | $505 / Sq Ft |
Source: IRES MLS
Purchase History
| Date | Type | Sale Price | Title Company |
|---|---|---|---|
| Special Warranty Deed | $3,480,000 | Heritage Title Co | |
| Warranty Deed | $2,250,000 | Heritage Title | |
| Warranty Deed | $2,050,000 | None Available | |
| Warranty Deed | $700,000 | Big Rock Title | |
| Interfamily Deed Transfer | -- | -- | |
| Deed | -- | -- | |
| Deed | $85,000 | -- | |
| Deed | -- | -- |
Source: Public Records
Mortgage History
| Date | Status | Loan Amount | Loan Type |
|---|---|---|---|
| Open | $1,290,000 | Adjustable Rate Mortgage/ARM | |
| Previous Owner | $300,000 | Unknown | |
| Previous Owner | $525,000 | Unknown |
Source: Public Records
About the Listing Agent
Maureen moved to Boulder in 2003 and currently lives in north Boulder with her family. She became licensed in 2007 and recently joined RE/MAX of Boulder from Bodin Realty International.
Maureen values understanding her clients needs. As a result, she advocates strongly for her buyers and sellers. Her expertise is in residential real estate and has been involved in varying transactions with broad price ranges in Boulder County, as well as areas spanning from Denver to Loveland.
She is
Maureen's Other Listings
Source: IRES MLS
MLS Number: 1044486
APN: 1461361-05-019
Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.
Information source: Information and Real Estate Services, LLC. Provided for limited non-commercial use only under IRES Rules © Copyright IRES.
Listing information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
Information deemed reliable but not guaranteed by the MLS.
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